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<h1 class="refname">Memcached::getDelayed</h1>
<p class="verinfo">(PECL memcached >= 0.1.0)</p><p class="refpurpose"><span class="refname">Memcached::getDelayed</span> — <span class="dc-title">Request multiple items</span></p>
</div>
<div class="refsect1 description" id="refsect1-memcached.getdelayed-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>Memcached::getDelayed</strong></span>
( <span class="methodparam"><span class="type">array</span> <code class="parameter">$keys</code></span>
[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$with_cas</code></span>
[, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$value_cb</code></span>
]] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>Memcached::getDelayed()</strong></span> issues a request to memcache for
multiple items the keys of which are specified in the
<em><code class="parameter">keys</code></em> array. The method does not wait for response
and returns right away. When you are ready to collect the items, call
either <span class="methodname"><a href="memcached.fetch.html" class="methodname">Memcached::fetch()</a></span> or
<span class="methodname"><a href="memcached.fetchall.html" class="methodname">Memcached::fetchAll()</a></span>. If <em><code class="parameter">with_cas</code></em>
is true, the CAS token values will also be requested.
</p>
<p class="para">
Instead of fetching the results explicitly, you can specify a <a href="memcached.callbacks.html" class="link">result callback</a> via
<em><code class="parameter">value_cb</code></em> parameter.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-memcached.getdelayed-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">keys</code></em></span>
<dd>
<p class="para">
Array of keys to request.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">with_cas</code></em></span>
<dd>
<p class="para">
Whether to request CAS token values also.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">value_cb</code></em></span>
<dd>
<p class="para">
The result callback or <strong><code>NULL</code></strong>.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-memcached.getdelayed-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
Use <span class="methodname"><a href="memcached.getresultcode.html" class="methodname">Memcached::getResultCode()</a></span> if necessary.
</p>
</div>
<div class="refsect1 examples" id="refsect1-memcached.getdelayed-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4440">
<p><strong>Example #1 <span class="function"><strong>Memcached::getDelayed()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">Memcached</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">addServer</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">, </span><span style="color: #0000BB">11211</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">set</span><span style="color: #007700">(</span><span style="color: #DD0000">'int'</span><span style="color: #007700">, </span><span style="color: #0000BB">99</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">set</span><span style="color: #007700">(</span><span style="color: #DD0000">'string'</span><span style="color: #007700">, </span><span style="color: #DD0000">'a simple string'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">set</span><span style="color: #007700">(</span><span style="color: #DD0000">'array'</span><span style="color: #007700">, array(</span><span style="color: #0000BB">11</span><span style="color: #007700">, </span><span style="color: #0000BB">12</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">getDelayed</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'int'</span><span style="color: #007700">, </span><span style="color: #DD0000">'array'</span><span style="color: #007700">), </span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">fetchAll</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(2) {
[0]=>
array(3) {
["key"]=>
string(3) "int"
["value"]=>
int(99)
["cas"]=>
float(2363)
}
[1]=>
array(3) {
["key"]=>
string(5) "array"
["value"]=>
array(2) {
[0]=>
int(11)
[1]=>
int(12)
}
["cas"]=>
float(2365)
}
}
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-memcached.getdelayed-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="methodname"><a href="memcached.getdelayedbykey.html" class="methodname" rel="rdfs-seeAlso">Memcached::getDelayedByKey()</a> - Request multiple items from a specific server</span></li>
<li class="member"> <span class="methodname"><a href="memcached.fetch.html" class="methodname" rel="rdfs-seeAlso">Memcached::fetch()</a> - Fetch the next result</span></li>
<li class="member"> <span class="methodname"><a href="memcached.fetchall.html" class="methodname" rel="rdfs-seeAlso">Memcached::fetchAll()</a> - Fetch all the remaining results</span></li>
</ul>
</p>
</div>
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